If someone looking to monetize their website I suggest
adforgames.com has a lot of ads size inclusive site skin version. For advertisers also good prices many payment types inclusive Paypal. The minimum for cash out for the publishers is 20$. For country who not support paypal they offer Amazon gift cards.
By the way, you don't need anymore have Alexa under 1mil. to become a publisher and no Friv domain accept.